ssgx_utils_t_time.h

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#ifndef SAFEHERON_SGX_TRUSTED_TIME_H
#define SAFEHERON_SGX_TRUSTED_TIME_H
 
#include <cstdint>
#include <ctime>
#include <string>
 
namespace ssgx {
namespace utils_t {
 
class TimeSpan {
  public:
    TimeSpan() noexcept;
    explicit TimeSpan(time_t span) noexcept;
 
    TimeSpan(int64_t num_days, int num_hours, int num_mins, int num_secs) noexcept;
 
    [[nodiscard]] time_t GetTimeSpan() const noexcept;
 
    [[nodiscard]] int64_t GetDays() const noexcept;
 
    [[nodiscard]] int64_t GetTotalHours() const noexcept;
 
    [[nodiscard]] int64_t GetTotalMinutes() const noexcept;
 
    [[nodiscard]] int64_t GetTotalSeconds() const noexcept;
 
    [[nodiscard]] int64_t GetHours() const noexcept;
 
    [[nodiscard]] int64_t GetMinutes() const noexcept;
 
    [[nodiscard]] int64_t GetSeconds() const noexcept;
 
    // Overloaded operators for arithmetic and comparison
    TimeSpan operator+(TimeSpan span) const noexcept;
    TimeSpan operator-(TimeSpan span) const noexcept;
    TimeSpan& operator+=(TimeSpan span) noexcept;
    TimeSpan& operator-=(TimeSpan span) noexcept;
    bool operator==(TimeSpan span) const noexcept;
    bool operator!=(TimeSpan span) const noexcept;
    bool operator<(TimeSpan span) const noexcept;
    bool operator>(TimeSpan span) const noexcept;
    bool operator<=(TimeSpan span) const noexcept;
    bool operator>=(TimeSpan span) const noexcept;
 
  private:
    time_t time_span_;
};
 
class DateTime {
  public:
    static DateTime Now();
 
    static DateTime FromFormatTime(const std::string& formattedTime);
 
    DateTime() noexcept;
 
    explicit DateTime(time_t timestamp) noexcept;
 
    DateTime(int num_year, int num_month, int num_day, int num_hour, int num_min, int num_sec);
 
    // Assignment and arithmetic operators
    DateTime& operator=(time_t timestamp) noexcept;
    DateTime& operator+=(TimeSpan span) noexcept;
    DateTime& operator-=(TimeSpan span) noexcept;
    TimeSpan operator-(DateTime time) const noexcept;
    DateTime operator-(TimeSpan span) const noexcept;
    DateTime operator+(TimeSpan span) const noexcept;
 
    // Comparison
    bool operator==(DateTime time) const noexcept;
    bool operator!=(DateTime time) const noexcept;
    bool operator<(DateTime time) const noexcept;
    bool operator>(DateTime time) const noexcept;
    bool operator<=(DateTime time) const noexcept;
    bool operator>=(DateTime time) const noexcept;
 
    // Accessors for time components
    [[nodiscard]] time_t GetTimestamp() const noexcept;
    [[nodiscard]] int GetYear() const noexcept;
    [[nodiscard]] int GetMonth() const noexcept;
    [[nodiscard]] int GetDay() const noexcept;
    [[nodiscard]] int GetHour() const noexcept;
    [[nodiscard]] int GetMinute() const noexcept;
    [[nodiscard]] int GetSecond() const noexcept;
    [[nodiscard]] int GetDayOfWeek() const noexcept;
 
    [[nodiscard]] std::string ToFormatTime() const;
 
  private:
    time_t timestamp_; // Internal representation of the timestamp
};
 
class PreciseTime {
  public:
    static int64_t NowInNanoseconds();
 
    static int64_t NowInMilliseconds();
};
 
} // namespace utils_t
} // namespace ssgx
 
#endif // SAFEHERON_SGX_TRUSTED_TIME_H